ProSoft MVI56-PDPMV1 - FLEX Sample Add-On Instruction Import Procedure

MVI56-PDPMV1 ♦ ControlLogix Platform Start Here
PROFIBUS DPV1 Master User Manual
Page 37 of 251 ProSoft Technology, Inc.
1.7.2 FLEX Sample Add-On Instruction Import Procedure
Note: This section applies only if the MVI56-PDPMV1 firmware version is 1.21 (or later) AND
configured in FLEX mode (USE LEGACY MODE = NO)
Before You Begin
The following file is required before you start this procedure. You can
download it from www.prosoft-technology.com.
File Name
Description
PS56PDPMV1_FLEX_AddOn_Rung_v*.L5X
(where * is the current sample program
version number)
L5X file containing Add-On Instruction, user-defined
data types, controller tags, and ladder logic required
to set up the MVI56-PDPMV1 module
Flexible Connection I/O Length Overview
This section describes the flexible backplane connection I/O concept.
The connection parameters may assume values within the following ranges:
Minimum Size
(16-bit)
Maximum Size (16-
bit)
Maximum PROFIBUS data count per
block (16-bit)
Assembly
Instance
Input
12
250
[input size - 8]
1
Output
5
248
[bp output size - 5]
2
Configuration
0
0
not used
4
For applications where the module will be used in the local rack (the same rack
as the ControlLogix processor), use the maximum backplane I/O sizes.
For applications where the module will be used in a remote rack, use the
backplane I/O sizes that will provide optimal network performance (PROFIBUS
and ControlNet or EtherNet/IP).
The configured sizes will have an impact on the number of blocks required to
transfer the entire PROFIBUS I/O database between the ControlLogix processor
and the MVI56-PDPMV1 module. Reducing the number of words per backplane
block may improve the ControlNet or EtherNet/IP network performance.
However, doing so will increase the number of backplane block transfers and
have a negative effect on overall backplane data transfer efficiency.